<template>
  <div>
    <h3>Right组件</h3>
    <p>{{ age }}</p>
    <button @click="age++">+1</button>
  </div>
</template>

<script>
export default {
  data () {
    return {
      age: 20
    }
  }
}
</script>

<style lang="less" scoped>
div {
  min-height: 200px;
  background-color: cadetblue;
}
</style>